The premise is simple. The group constructed a custom wooden lectern with a megaphone attached, and a sign that read, "Say Something Nice." They placed the lectern in public spaces around New York City on August 7 and let strangers and random passerbys step up to say whatever they want -- hopefully something nice.

Produced by Improv Everywhere as part of the Guggenheim Museum exhibition "stillspotting nyc," people wished everyone a wonderful day, complimented strangers, and even beatboxed or sang. One young Buzz Lightyear fan even said "To infinity and beyond!"

It's a nice sentiment that may have been inspired by Bill & Ted's slogan, "Be excellent to each other." As featured on Time, this video has been viewed more than 1.8 million times in just one week.

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